Pumping attachment for oil-well rigs



June 1o 1924, A y 1,497,494 C. C. FETTY ET AL PUMPING ATTACHMENT FOR OIL WELL RIGS Fired oat. 17. 1923 sie 5/ IMLI:

' l ls. 63.5 d' `l lsatented June l, 1924.

yunirse stares PATENT orrics.

CHARLE CAIVIDDN BEITY AND GSTLVIS LE ROY RAM'SEY, OF ELDORADO, KANSAS.

PULWPING ATTACHIENT FOR OIL-NELL RGS.

Application filed vOctober 17, 1823. Serial No. 669,152.

T 0 all whom t may con-cera Be it known that we, @Hannie GAMDON lfn'rrr and GUs'rM'rs Ln Roi' Reitern', citi- Zens of the United States, residing at Eldorado, in the county of Butler and State of Kansas, have invented certain new and f useful Improvements in Pumpinon attach` ments for Oil-Well Rigs; and we do declare the following to be a full, clear, and exact description of the invention, such as `will enable others skilled in the art to which it f appertains to make and use the same, refant in those wells which develop water and where it is desired to pump the water from the well. Prior to our invention it has been standard practice to leave the band wheel and the walking beam at the well at fthe completion ofthe drilling operation and toV connect the pump rod to the walking beam so that when the band wheel is driven by an engine, the pump rod will be actuated.

rllhe objection to this practice is that in a.

l drilling operation the movement-of the drill rod ineither direction is relatively slight whereas in a pumping operation a long stroke is desirable, consequently where the walking beamand band wheel of the drilling rig were made to impart motion to the pump rod, the movement'of the piston was too slight to be really ei'lective.

Vire have provided means whereby the band wheel and walking beam can still be used for the pumping operation but the connectintT links between the band Wheel and walking beam have been modified or changed to provide for a greater stroke than is normal to the drilling rig and also to provide an increase of power over the standard forni of mechanism.

The novel features of the invention will be apparent by reference to the following description in connection with the accompanying drawings, in which- Fig. l is an elevational view of a pumping rig constructed in accordance with our invention.

Fig: 2 is an enlarged horizontal, sectional View through the planetary gearing and the pitman which translates the rotary motion of the band wheel into the vibratory move ment ofthe walking beam. Y

Fig. 3 is a vertical, sectional View on the line of Fig. 2, and I Fig. l is a perspective view of the planetary gear.

Referrng now to the drawings by numerals of reference:

l designates the derrick platform upon which the standard 2 for the walking beam 3 is mounted. 4 designates the band wheel, 5 its shaft, 6 the jack post, and@v the mud sills; these being parts of the normal drilling rig. In order to impart the greater throw to the walking bean'iwe mount a gear 8 upon the axle of theband vwheel. The gear 8 comprises a hub 9` having spaced flanges or disks l0 and l0 which have teeth l1 and ll meshing with teeth 12 and 19. ot'

a similarly constructed planetary gear 18 to which the pitn'ian la is secured. The planet-- ary gear is provided with two parallel flanges l5 and 16 between which is fastened the pitinan lll.

rlhe gears 8 and 13 are connected together by the cross head consisting of the two bars 23 and 24 fastened by the cross head members 25 and 26, the cross head inen'ibersI having notches to receive the hubs 9 and iT respectively of the gears 8 and l18; the cross head being adjustable on the rods 28 and 24- by the nuts 27 and 28.

l/Vhen the nuts 23 and 24 are taken olf the rods or bars 23 and 24, the cross head or yoke can be removed to lallow the gear 13 to drop so as to swing the front end of the walking beam 3 upward through a greater arc than is normallv possible. Therefore. the front end of the walking beam can swing out of line with the pump rods to al low them to be pulled7 The teeth l0 and 10 on the gear 8 and the teeth 12 and 12 on the gear 18 are shrouded to their pitch line as at 3() and 8i to form rolling surfaces 32 and 3?) for the gears so that as the gear 13 planeltates around the gear 8, the teeth will he kept in proper meshing relation which eliminates uneven stress upon the teeth which would tend to break them oif or cause the gears to bind.

The pitman is connected to the walking pinion 8 it is apparent that as it planetates about the gear 8, a relatively long` throw will be imparted to the walking beam 3 by which a corresponding long movement will be imparted to the pump rod and through itto the pump piston; therefore, the stroke of the piston will be much greater and with increase of power than it would be if the pump rod were operated solely by the conventionalform of vcrank and band wheel.

It4 is to be understood, of course, that the shaft, 5 can beconveniently mounted in the jack post boX V36 although any other forni ofl bearing may be employed.

What we claim `and desire to secure by Letters Patent is: j

l'. In combination a pair of circular gears each gear having shrouds, and readily detachable means connecting the gears to normally y maintain the shrouds in rolling contact and to permit separationof the gears, one of the gears being mounted upon a lixed axis, the

other gear moving about the axis of the iirst in a circular path.

2. In a power transmission mechanism, a drive shaft, a circular gear rigid on the shaft, a walking beam, a pitman loosely connected to the walking beam, a second circularl gear rigid on the pitman, shrouds on both gearsand readily detachable means fornormally maintaining theshrouds of the two gears in rolling contact, the removable means permitting the second gear to be moved away from the first to allow the front end of the walking beam to swing upwardly through a greater arc than that which it canswing when the two gears are in mesh.

3. In combination, a pair of gears, each gear comprising a hub with two parellel webs to provide a space between the webs, each gear having a shroud extending t0 the pitch line of the teeth, means enga ring the hubs between the webs connecting t ie gears together so that the shrouds oi" the respective gears will contact, one of the gears being mounted on a .fixed axis, the axis of the other gear moving about the axis of the first in a circular path.

1. In a power transmission mechanism, a. drive shaft, a circular gear rigid upon the drive shaft, a circular driven gear meshing with the iii-st mentioned gear, outstanding flanges on the driven gear to receive a pitman between them, shrouds on the gears, and readily detachable means connectin the gears to normally maintain the shrou s in rolling contact and to permit separation of the gears, the second gearv moving about the axis of the first in a circular ath.

5. In combination, a pair o circular gears each having shrouds, one of the ears rotating about a fixed axis, the ot 1er gear moving about the axis of the first in a circular path, and readily detachable means connecting the gears to normally maintain the shrouds in rolling contact, said means comprising cross head members on the hubs of the respective gears and means for adjustably connect-ing the cross head members in cooperative relation.

6. In combination a pair of meshing circular gears each having slirouds, one of the gears rotating about a fixed axis, the other gear rotating about the irst,y and adjust-4 able means connecting the hubs of the respective gears, said means comprising cross head members engaging the gear hubs, rods passing through one of the cross head meinbers and nuts adjustably engaging the. ends of the rods.

In testimony whereof we aliix our signatures.

CHARLIE CAMDON FETTY.` GUSTAVIS LE ROY RAMSEY. 

